EP1666193A2 - Procédé, dispositif et palette pour alimenter des pièces de montage aux stations de montage - Google Patents

Procédé, dispositif et palette pour alimenter des pièces de montage aux stations de montage Download PDF

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Publication number
EP1666193A2
EP1666193A2 EP20050024299 EP05024299A EP1666193A2 EP 1666193 A2 EP1666193 A2 EP 1666193A2 EP 20050024299 EP20050024299 EP 20050024299 EP 05024299 A EP05024299 A EP 05024299A EP 1666193 A2 EP1666193 A2 EP 1666193A2
Authority
EP
European Patent Office
Prior art keywords
pallet
pallets
mounting
mounting parts
tracks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20050024299
Other languages
German (de)
English (en)
Inventor
Horst Nigmann
Franz Stifter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfing Montagetechnik GmbH
Original Assignee
Alfing Montagetechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfing Montagetechnik GmbH filed Critical Alfing Montagetechnik GmbH
Publication of EP1666193A2 publication Critical patent/EP1666193A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/001—Article feeders for assembling machines

Definitions

  • the present invention relates to a method, a device and a pallet for feeding mounting parts to assembly stations.
  • valve seat rings and valve guides are pressed into intended receptacles of the cylinder head.
  • the cylinder head is one of the most complicated castings on the motor vehicle. In-line engines and 15 ° V engines have only one cylinder head, all other designs at least two. As a rule, cylinder heads are made of an aluminum alloy. They are subject in their manufacture a high mechanical processing and assembly costs. Its largest part is attributable to the gas exchange valves with all associated components.
  • gas exchange valves are intake and exhaust valves that seal the combustion chamber and control the gas exchange in the engine.
  • gas exchange valves are provided in the cylinder head, namely two intake valves and two exhaust valves.
  • These valves each include a valve disk and a valve lifter slidably seated in a bore in the cylinder head, which valve disk is engageable with a valve seat at the entrance of the bore to open and close the intake and exhaust ports to the cylinder chamber.
  • a valve guide For each valve, a valve guide is provided which serves to guide the valve stem in its movement. Its task is to absorb the lateral forces acting on the valve lifter.
  • the valve guide centers the valve on the valve seat and diverts some of the heat from the valve head to the cylinder head via the valve lifter.
  • Valve seating rings are inserted into the cylinder head to provide wear-resistant bearing surfaces for the valve disks.
  • valve seat rings and valve guides are pressed under cooling after previous processing and possibly heating of the corresponding installation sites in the cylinder head. They are then held in place in the cylinder head by a press fit.
  • the valve guides and valve seat rings are radially constricted when pressed into the housing bore of the cylinder head. The housing bore, however, is widened.
  • Such devices for aligning and / or sorting of individual parts are known, for example, from DE 40 25 391 C2 and DE 197 09 714 A1.
  • the present invention has for its object to provide a method and apparatus for supplying mounting parts to assembly stations, with which the assembly stations can be loaded in a space-saving and less prone to error manner with type-pure and correct mounting hardware.
  • the inventive method is particularly well suited for the supply of so-called mass parts to assembly stations, for example for the supply of valve seat rings, valve guides, cap, screw plugs, studs and the like to a mounting station for cylinder heads.
  • the assembly parts are sorted and stored in the correct position in the pallets. This happens as directly as possible with the manufacturer of the assembly parts. There, the assembly parts leave the production process namely in a defined position and type pure; instead of subsequently transporting the assembly parts as bulk material, the correctness and type purity of the assembly parts is maintained by arranging the assembly parts immediately on pallets.
  • the pre-commissioned assembly parts in the pallet towers eliminate the time-consuming, cost-intensive and error-prone sorting and testing of the assembly parts in the assembly systems.
  • a gripper pushes the mounting parts in the transfer position of the pallet on a corresponding feed belt as a preferred embodiment of the feeder.
  • a gripper pushes the mounting parts in the transfer position of the pallet on a corresponding feed belt as a preferred embodiment of the feeder.
  • pallets are used, which have webs separated tracks in which the mounting parts are added.
  • the gripper then pushes the assembly parts out of the tracks of the pallet onto the feed belt in the transfer position.
  • the gripper can move the pallet after clearing a track of the pallet with respect to the feed belt before the next track is cleared.
  • the mounting parts from the individual tracks of the pallet can be placed one behind the other or in a row on the conveyor belt.
  • the emptied pallet preferably returns the gripper and places it in the area of the pallet towers; Here, gradually, a tower of empty pallets can be created, which is then transported away.
  • up to 50 pallets can be stacked to a pallet tower.
  • the design of the transfer device of the gripping device depends on the type of pallets used.
  • the transfer device can be designed so that it pushes out the mounting parts in the transfer position from each other by webs separated tracks of the pallet, in which the mounting parts are added.
  • the gripping device can also be provided with a closure device which secures the mounting parts during the transport of the pallet from the pallet tower in the transfer position on the pallet. In particular, in pallets with open at their ends tracks is prevented so that the mounting parts fall off during transport of the pallet.
  • the invention also provides a pallet for receiving correct position and type-pure mounting parts, with webs separated by tracks for receiving the mounting hardware.
  • the tracks may have a U-shaped cross-section and be open at their ends so that the mounting parts are laterally slidable into and out of the tracks.
  • the pallets are preferably stackable and configured so that the webs of the individual pallets come to lie one above the other in the stacked state of the pallets.
  • the ends of the tracks of a lower pallet are closed by means of the pallet arranged above.
  • FIG. 1 A device according to the invention for feeding assembly parts to assembly stations is shown in FIG.
  • the device according to the invention is designed such that it removes the assembly parts to be supplied from pallets and conveys them to at least one assembly station (not shown).
  • the pallet towers are arranged in blocks next to each other.
  • pallet towers shown in Figure 2 can be equipped as follows: pallets 1-6 with valve seat rings, pallets 11-14 with valve guides; Palettes 9 and 10 may be empty pallets in this example.
  • the device according to the invention has a gantry system on which a gripper 31 is guided ( Figure 1). This can be moved with respect to the pallet towers 21-23 in the X and Z directions (these directions are indicated in FIGS. 1 and 2). Serve a Z-guide 32 and an X-guide 33rd
  • the gripper 31 By moving the gripper 31 in the Z-direction, the uppermost pallet can be lifted from one of the pallet towers 21-23.
  • the gripper 31 then moves along the X-guide to a transfer position where it transfers the mounting hardware from the pallet to one of several illustrated guide belts 41-50.
  • These guide belts transport the mounting parts to vertical magazines 61-70 of an assembly station (not shown), from where they are transferred to the assembly station where they are mounted, for example, on a cylinder head.
  • a transfer device To transfer the mounting parts of the pallet to the guide belts in the transfer position of the gripper 31 is equipped with a transfer device.
  • the design of this transfer device is adapted to the design of the pallets used in the device according to the invention, and will be described in more detail later with reference to FIG.
  • FIG. 3 A first embodiment of a pallet usable in the device according to FIGS. 1 and 2 is shown in FIG. 3.
  • This pallet designated by the reference numeral 50 in FIG. 3, may for example be designed as a thermoforming foil.
  • the dimensions of the pallet are dependent upon the size, shape and weight of the mounting hardware to be carried therein. Possible pallet sizes are for example 300 x 400 mm, 400 x 600 mm, 600 x 800 mm and 800 x 1200 mm.
  • the pallet 50 shown in FIG. 3 is designed to receive valve seat rings.
  • valve seat rings 100 are arranged on the pallet, namely 12 rows of 10 pieces.
  • Valve seat rings 100 are located in tracks 110 formed on pallet 50. These tracks 110 are separated from one another by longitudinal webs 120 and opened at their ends. The valve seat rings 100 can thus be laterally, i. in the direction of the arrow A in FIG. 3, in which the tracks 110 are pushed onto the pallet 50 and also pushed out of the tracks 110 again.
  • the lands 120 are spaced apart to allow this displacement of the valve seating rings 100 in the tracks 110, but to define the valve seat rings 100 in the direction perpendicular to this displacement (i.e., in the direction of arrow B in Figure 3).
  • FIG. 4 shows two of the pallets 50 shown in FIG. 3, which are stacked on one another.
  • the webs 120 of the individual pallets 50 come to lie one above the other.
  • Each two adjacent webs 120, a track 110 of the lower pallet and the bottom of the upper pallet thus form a kind of "channel" in which the mounting parts, in this case the valve seat rings 100, are located. The mounting parts are then displaced only in the longitudinal direction of this channel.
  • the pallets 50 can be stacked up to towers up to a height of about 1 meter.
  • the pallets 50 center each other and protect the mounting hardware 100 from damage and contamination.
  • the pallets 50 according to the invention have a large storage capacity: For example, the capacity of a 800 mm high pallet tower with a pallet size of 400 x 600 mm, for holding valve seat rings with a diameter of 36 mm for mounting on a 6-cylinder head with 4-valve technology, at a cycle time of 25 seconds for about 3.5 hours. With two towers therefore already a complete shift can be supplied.
  • FIG. 5 shows an alternative embodiment of a pallet according to the invention.
  • This pallet 52 is configured to receive valve guides 112; 270 valve guides 112 can be accommodated on a pallet 52, namely 30 rows of 9 pieces.
  • This pallet 52 like the one shown in Figure 3, at their ends open tracks 110 and webs 120; their dimensions are adapted to the dimensions of the valve guides 112.
  • the tracks 110 have a U-shaped cross-section.
  • the above-mentioned transfer device of the gripper 31 of the portal system is now designed so that it transfers the assembly parts 100, 112 of the located on the gripper 31 range 50, 52 to the corresponding transfer belt 41-50 in said transfer position.
  • the transfer device uses the arrangement of the mounting parts 100, 112 in the tracks 110 of the pallets 50, 52.
  • the transfer device in the embodiment described herein is in the form of a pusher provided on the gripper 31 which simply pushes the mounting members 100,112 at the transfer position from the tracks 110 of the pallet 50,52 onto the corresponding delivery belt 41-50.
  • This pusher is designated in the detail view of the gripper 31 in Figure 6 by the reference numeral 312. It is movable relative to the pallet 50, 52 and clears the tracks 110 of the pallet 50, 52 in succession. In addition, the pallet 50, 52 and the transfer belts 41-50 can also be seen in FIG.
  • a plurality of ejectors or even for each track 110 of the pallet 50, 52 a separate ejector on the gripper 31 may be provided.
  • the tracks 110 of the pallets 50, 52 should be closed at their ends as possible in order to prevent falling out of the mounting parts 100, 112 from the pallet 50, 52.
  • the gripper 31 is provided with a plate-shaped position securing 311 for the mounting parts located on the pallet 50, 52, which prevents the mounting parts from falling off the pallet 50, 52 during transport, and which only in the transfer position for pushing out the mounting parts 100, 112 is opened from the tracks 110.
  • the entire device can serve to feed a single assembly station.
  • the pallet towers can be positioned as close as possible to the assembly station to be loaded in order to keep the paths to be traveled by the assembly parts as short as possible.
  • the device according to the invention can also be provided centrally for feeding a plurality of assembly stations.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)
EP20050024299 2004-12-03 2005-11-08 Procédé, dispositif et palette pour alimenter des pièces de montage aux stations de montage Withdrawn EP1666193A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410058387 DE102004058387A1 (de) 2004-12-03 2004-12-03 Verfahren, Vorrichtung und Palette zum Zuführen von Montageteilen zu Montagestationen

Publications (1)

Publication Number Publication Date
EP1666193A2 true EP1666193A2 (fr) 2006-06-07

Family

ID=35956927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050024299 Withdrawn EP1666193A2 (fr) 2004-12-03 2005-11-08 Procédé, dispositif et palette pour alimenter des pièces de montage aux stations de montage

Country Status (2)

Country Link
EP (1) EP1666193A2 (fr)
DE (1) DE102004058387A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106425399A (zh) * 2016-07-20 2017-02-22 梁启明 一种滴斗与导管装配机构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19709714A1 (de) 1997-03-10 1998-09-17 Profil Verbindungstechnik Gmbh Versorgungssystem zur Lieferung von Elementen an Abnehmer sowie Verfahren zur Versorgung eines Abnehmers
DE4025391C2 (de) 1989-09-27 2002-11-14 Walter Sticht Vorrichtung zum Ausrichten und/oder Sortieren von Einzelteilen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD106582A1 (fr) * 1973-09-26 1974-06-20
DE8419856U1 (de) * 1984-07-03 1984-08-23 Czajka, Werner, 4716 Olfen Stapelbare Palette fuer den Transport von Dosendeckeln
DE29723886U1 (de) * 1997-04-29 1999-04-22 Promot Ind Automatisierungs Sy Handhabungssystem für Werkstücke mit Umstapelzelle für Werkstückträger
DE19805206A1 (de) * 1998-02-10 1999-08-12 Artur Baer Gmbh Handhabungsvorrichtung zur Zuführung und/oder Abführung von Werkstücken

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4025391C2 (de) 1989-09-27 2002-11-14 Walter Sticht Vorrichtung zum Ausrichten und/oder Sortieren von Einzelteilen
DE19709714A1 (de) 1997-03-10 1998-09-17 Profil Verbindungstechnik Gmbh Versorgungssystem zur Lieferung von Elementen an Abnehmer sowie Verfahren zur Versorgung eines Abnehmers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106425399A (zh) * 2016-07-20 2017-02-22 梁启明 一种滴斗与导管装配机构
CN106425399B (zh) * 2016-07-20 2023-10-27 梁启明 一种滴斗与导管装配机构

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Publication number Publication date
DE102004058387A1 (de) 2006-06-08

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